Forgot your password?
typodupeerror

Comment: Re:Turning CO2 into carbonates? (Score 1) 142

by White Flame (#44673407) Attached to: Australian University Unveils New Carbon-Trapping Bricks

The only reason the CO2 is sequestered is because of a particular chemical reaction, which has zero bearing on heavy metals, sulfur compounds, radioactives & other pollutants. One piece of equipment does one job, because each reaction needs its own reactants, catalysts, and general environment, and each has its cost & energy tradeoffs. One particular CO2 reaction has nothing at all to do with the other emissions.

Comment: Re:Turning CO2 into carbonates? (Score 1) 142

by White Flame (#44668399) Attached to: Australian University Unveils New Carbon-Trapping Bricks

Every coal- or oil-fired power plant could have it's adjacent brick factory and become carbon neutral.

Coal puts out tons of real pollution (toxins, radioactive particulates, etc), not just CO2. Sequestering the CO2 does not solve the even more immediate and tangible harmful emissions problem.

Comment: Re:If it's cheaper it's still good (Score 1) 438

by White Flame (#44416685) Attached to: "Slingatron" To Hurl Payloads Into Orbit

before it and the payload reenter and burn up.

If it were in danger of burning up on reentry, don't you think it's even more at risk of burning up on ascent? It's moving fastest and through thickest atmosphere at launch, instead of accelerating with further stages at altitude. And that is the entire problem behind this Wile E. Coyote idea.

Comment: Re:Hold the bus (Score 1) 98

by White Flame (#44372351) Attached to: Adapteva Parallella Supercomputing Boards Start Shipping

I don't know what you read, but the 6.4GB/sec chip interface bandwidth is less than a standard PCIe graphics card at 8GB/sec. Now, you may argue that there is more latency across PCIe or something, but also note that the Parallella system assumes a shared memory architecture with the host OS on the ARM.

Again, there are no dedicated RAM chips for the accelerator on this board, and the chip itself has no DRAM controllers. You can only load up to 32KB of RAM per core into the chip caches itself; it doesn't have gigabytes of fast memory available to it like GPGPU processing does. This entire architecture is based around it being very chatty across that shared memory & comm bus, FAR more than any GPU would ever be.

This chip is for inexpensive acceleration of large-ish streaming data problems, like signal processing and video codecs or maybe map/reduce work, with very little state held on the actual chip. It's hard to see it having any sort of decent performance outside that, either in embarrassingly parallel or generalized multi-core problems.

Comment: Re:Hold the bus (Score 1) 98

by White Flame (#44369029) Attached to: Adapteva Parallella Supercomputing Boards Start Shipping

You are aware that this chip has the exact same problems, right? But unlike a GPU it has very limited on-chip memory, and no directly attached external memory at all. All communication happens through a FPGA-driven channel to the ARM, with the ARM being the only thing with DRAMs attached.

This is fundamentally, and properly labeled as, an external "accelerator chip" to add onto a computer.

Comment: Re:Petaflops (Score 1) 60

by White Flame (#44368615) Attached to: Supercomputer Becomes Massive Router For Global Radio Telescope

Ditto. Also, in many "big data" projects, FLOPS is of little use anyway. There is a ton of textual processing and predicate matches to be done in the rest of the world. With ARM entering the HPC space, hopefully more broadly meaningful integer & IO ops numbers will be bandied about rather than just this laser-focus on vector floats.

Movies

Hollywood's Love of Analytics Couldn't Prevent Six Massive Blockbuster Flops 1029

Posted by samzenpus
from the well-that-wasn't-good dept.
Nerval's Lobster writes "In June, Steven Spielberg predicted that Hollywood was on the verge of an 'implosion' in which 'three or four or maybe even a half-dozen megabudget movies are going to go crashing to the ground.' The resulting destruction, he added, could change the film industry in radical and possibly unwelcome ways. And sooner than he may have thought, the implosion has arrived: in the past couple weeks, six wannabe blockbusters have cratered at the North American box office: 'R.I.P.D.,' 'After Earth,' 'White House Down,' 'Pacific Rim,' and 'The Lone Ranger.' These films featured big stars, bigger explosions, and top-notch special effects—exactly the sort of summer spectacle that ordinarily assures a solid run at the box office. Yet all of them failed to draw in the massive audiences needed to earn back their gargantuan budgets. Hollywood's more reliant than ever on analytics to predict how movies will do, and even Google has taken some baby-steps into that arena with a white paper describing how search-query patterns and paid clicks can estimate how well a movie will do on its opening weekend, but none of that data seems to be helping Hollywood avoid shooting itself in the foot with a 'Pacific Rim'-sized plasma cannon. In other words, analytics can help studios refine their rollout strategy for new films—but the bulk of box-office success ultimately comes down to the most elusive and unquantifiable of things: knowing what the audience wants before it does, and a whole lot of luck."

Comment: Re:All Jokes Aside... Still No. (Score 1) 250

by White Flame (#44335927) Attached to: MIT Uses Machine Learning Algorithm To Make TCP Twice As Fast

It's a chaotic system. The optimal responses to that can be another chaotic system, which happens to hit the right symbiosis enough of the time to offer clear benefits. You do not need to understand how the chaos works, and even if you do, it could appear completely nonsensical.

Comment: Re:never happen in the states (Score 1) 269

It's because there are multiple companies, but just 1 government. If a company does something bad, they screw up and people can go elsewhere (if there aren't monopolistic lock-ins that they try to legislate into existence). If the government does something bad, there's no other options. Consider that something will _always_ go bad somewhere, and it is better to have a more distributed set of options.

The government is also _bound_ to do things inefficiently, because they are run under rule of law and voted policy; you can't have people using their own judgment and have the liability of just "making things happen" when they represent the people, their tax dollars, and varying interests. This policy-driven model is _good_ for certain things that must be handled with legislative care, but is always going to be more expensive than what private business _could_ offer, pretty much by definition, and again a central point of failure.

Comment: Exactly what IBM did, but IBM did it easy. (Score 1) 94

by White Flame (#44334781) Attached to: ASUS PQ321Q Monitor Brings Multi-Stream Tiled Displays Forward

IBM's T221 monitor, the now ancient 3840x2400 22" 200dpi display, did the exact same thing.

It had 4 DVI inputs (newer models can support 2 dual-link DVIs), splitting up the screen into 1-4 stripes, depending on your bandwidth and setup. It's also directly plug & play, with no setup issues whatsoever on Linux, for what it's worth, and max frame rate is simply bound to how large each link is offering.

I've got a single card driving 2 T221s at a whopping 12Hz (single-link DVI each), and some low-res 30" 2560x1600 monitor with the displayport connector. 22 megapixels from 1 card is pretty nice, and I could be driving the T221s at 24Hz if I had the dual-link DVI connectors.

They were very flexible in their setup, not sure what Asus did here to make it a pain to set up.

"I may be synthetic, but I'm not stupid" -- the artificial person, from _Aliens_

Working...